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INSTRUCTIONS FOR USE
48
87-900-856-01 (B)
ERROR MESSAGES
For a certain type of failure, the controller will self-
diagnose the error and the messages described in the
following table are displayed.
The error messages are displayed only when the option
hand held terminal is available.
MESSAGE
DESCRIPTION
REPAIR ACTION
CHECK CONNECTION TO
PUMP
Wrong connection between the pump
and the controller.
Check connection between controller and
pump.
Press the START push-button twice to start
the pump.
FAULT: OVERTIME SX
Within each step of the soft start mode
the rotational speed of the pump does
not reach the planned value within 15
minutes.
(X) is the step number from 0 to 9
indicating the step number not passed).
Verify that system has no leaks. Press the
START pushbutton twice to start the pump.
FAULT: PUMP OVERTEMP.
The upper bearing/pump temperature
exceeds 60 °C.
Wait until the temperature decrease below
threshold value.
Press the START push-button twice
to start the pump.
FAULT: CONTROLLER
OVERTEMPERATURE
The controller transformer temperature
exceeds 90 °C.
Wait until the temperature decrease below
threshold value.
Press the START push-button twice
to start the pump.
FAULT: TOO HIGH L0AD
In normal operation (after the starting
phase) the current drawn by the pump is
higher than programmed (1.5 A)
Check that the pump rotor is free to rotate.
Press the START push-button twice to start
the pump.
FAULT: SHORT CIRCUIT
After the starting phase the output
connection is shorted (output current
higher than 2.2 A).
Check connections and shortages between
pump and controller.
Press the START push-button twice
to start the pump.
FAULT: R2 DELAY OVER
The pump rotational speed decreased
below the programmed speed
thereshold value, and the controller OFF
is selected, when R2 deenergizes.
Check for system leaks or gas load
conditions.
To restart the pump apply the reset signal
to
b8
pin of
P17
connector.
OVERVOLTAGE
Controller power supply circuitry is
faulty, or the Controller received a spike.
Press the START push-button twice to start
the pump.
Should the message still be present, call
the Varian service.